"Official" Audyssey thread (FAQ in post #1) - Page 188

Audyssey corrects the speaker-room interaction not the content. So, whatever is sent to the sub will be corrected by the sub filter and whatever is sent to the satellites will be corrected by the satellite filters.

Chris

I have the Denon 1909. When I run the auto set-up it sets my main speakers to small and crossover @40hz. It sets my sub @80hz. If I then manually change the main to 60hz and the sub to 120hz will I be losing any of the audyssey functions? Meaning do I need to keep it to the auto set-up settings for mutlieq and everything else to work properly. I don't really hear a difference when I make these changes.

Which is why lowering the crossover point(s) doesn't affect Audyssey's performance, right?

How much does the 'pro' kit run? You need this to have the MultEQ XT right?

I thought it makes it worse because resolution filters are higher with the sub?

Higher resolution filters = Better . . . Nyet?

I have been looking at the Denon 2809 and the Denon 2309 and it seems that the biggest difference is the Multi EQ TX vs Multi EQ.

Several have posted that there is a difference but really how much of a difference for a non-critical listener like myself??

I guess I do not understand you. Crossover point(s) higher = more frequency range to the sub = higher resolution filters = better performance. Right?

By setting a crossover on a main speaker that the Audyssey setup had as LARGE - ooops, Chris , that the manufacturer decided was LARGE based on Audyssey's testing - low frequency content that would have gone through the speaker with lesser resolution filters is now going through the subwoofer channel with its higher resolution filters. And the reason that there are higher resolution filters (read: narrower) on the sub channel is that IT NEEDS THEM to correct for room modes. Sending lower frequencies through the mains makes no sense to me for a lot of reasons.

Depends on how uncritical you are and how good/bad the acoustics of your setup are.

It wouldn't care where or how the crossovers are handled, you'd just put the EQ at the pre-amp outputs, and then that'd go to your amp or to your crossovers and multiple amps.

Dont forget, the 2809 has AL24, 2309 has not. I'd pay extra for that alone.

Correct. So lowering the crossover point(s) does affect Audyssey's performance.

Kal, this was a great article.

I believe my room has reasonable acoustic treatments. Based on your article, I should appreciate the Sound Equalizer even better. Nonetheless, have you ever done a comparison between the Sound Equalizer and MultEQ XT?

I guess that's the question foremost in my mind - if the incremental improvement over MultEQ XT is worth the SRP of the Sound Equalizer.

Thanks!

It doesn't affect what audyssey's doing, it just affects what your system is doing.

Thank you.


I have not done that. It is low on my priority list since I expect that, if I own a MultEQ XT-equipped processor with AudysseyPro capability, that I would not be obsessing about any incremental advantage of the SEQ. I could be wrong.

As my neice would say - whatever. I guess I consider Audyssey part of the system.

And keeping the signal in the digital domain would be a plus, yes?

I need to get the pro kit. The urge to tweak is calling.

Joe

I consider it a big part

Anybody?

OK. If you can't hear a difference, why make the changes? In any case, you can raise the crossover frequency for the main speakers but I wouldn't raise the LPF for the sub.

I ran Audyssey on my Denon 1909 and it set the speaker distance of 12.5 feet for my front LRs, however it set distance of 7.5 feet for the sub, that is sitting just next to the Front right speaker.
So I have two questions
1. What could be the reason for the drastic distance difference for the sub?
2. If I change it manually, would that affect anything or should I re-run Audyssey?

Strange. I have heard of getting much greater distance measurements for the sub but not shorter ones. I would run it again.

I changed it because it seems like it was suggested in this thread somewhere that the main L/R should be around 60hz-80hz and the subwoofer should be set around 120hz no matter what the auto audyssey set-up configures. Is this wrong? It's very possible that I didn't read this. I might be able to hear a difference if I really turned up the volume but at normal listening level, I couldn't really hear a difference. My main concern was that with the sub crossover set so low I was missing some LFE info and not getting the full effect. I like a lot of lows. Thanks very much for your help.

Like most generalities, yes.


There ain't much in the upper LFE and Audyssey set it there for a reason. BTW, with a setting of 100Hz, there is still considerable output at 120Hz since the crossovers are not brickwalls but, rather, slopes.

My fronts are capable of going down to 32 hz and the center as well. I know it's not recommended to leave settings at Full band for bass reasons as well as others but wouldn't it be fine if I left the double bass on function on so bass is sent to fronts as well as sub?

I usually think of performance being "affected" as a negative thing, but yes setting a crossover on a LARGE speaker or lowering it if there is already a crossover does affect system performance - it makes it better.

Why? Do you need more bass? I have never appreciated the need for the 'double-bass' setting unless something in the system is inadequate.

That sort of flies in the face of the "reasons" you alluded to. But I guess it is a personal decision about what you like to hear.

I asked because it was stated earlier that in running LARGE for fronts then some bass frequencies that are lower than your speaker is capable of producing is lost. I just thought that double bass would reroute those lower frequencies to my sub which goes into the low 20 hz's and they wouldn't be lost.